Corrosion resistance of high nickel alloys in solar salt at 600&nbsp;°C for up to 4000&nbsp;h

Elbakhshwan, Mohamed; Lee, Dong Hwi; Anderson, Mark

doi:10.1016/j.solmat.2022.111837

Corrosion resistance of high nickel alloys in solar salt at 600 °C for up to 4000 h

Journal Article · Thu Jun 09 00:00:00 EDT 2022 · Solar Energy Materials and Solar Cells

DOI:https://doi.org/10.1016/j.solmat.2022.111837· OSTI ID:1977665

Elbakhshwan, Mohamed ^[1]; Lee, Dong Hwi ^[2]; Anderson, Mark ^[2]

Univ. of Wisconsin, Madison, WI (United States); The British University in Egypt, Cairo (Egypt); OSTI
Univ. of Wisconsin, Madison, WI (United States)

This study focuses on the time dependent performance of the corrosion resistance of IN625, H230 and 740H alloys in the solar salt (60 wt% NaNO3, 40 wt% KNO3, at 600 °C) for up to 4000 h. Alloy IN625 showed the lowest mass change with parabolic oxidation kinetics that tends to stabilize with exposure time. Both 740H and H230 alloys deviated from the parabolic oxidation behavior beyond the 3000 h of exposure. Alloy 740H showed the highest mass loss due to the nonuniform surface oxidation and the high chromium dissolution rate. Internal oxidation was noticed with Alloy H230 due to the high tungsten concentrations.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Wisconsin, Madison, WI (United States)

Sponsoring Organization:: USDOE Office of Nuclear Energy (NE), Nuclear Energy University Program (NEUP)

Grant/Contract Number:: NE0008678

OSTI ID:: 1977665

Journal Information:: Solar Energy Materials and Solar Cells, Journal Name: Solar Energy Materials and Solar Cells Journal Issue: C Vol. 245; ISSN 0927-0248

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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